LZ 
marked with chocolate brown, about forty fine prickly 
radiating riblets. 1. S. & W. Coasts, in crevices of 
rocks. 
P, GLABER. Pen, 4. p. 223.—Mont. p. 150. and 
Sup. p. 59.t. 28. f. 6.—F. p. 384.—Turt. B. pm AVA; 
—Ostrea G. Turt. D. p. 132.—Equivalve, yellow 
mottled with rufous brown, with very minute transverse 
strie and from seven to ten obscure rounded rays, and 
numerous grooves in the inside. 3. Scotland, near 
Dunbar. 
P. Tumipvs. Turt. B. p. 212. ¢. 17. J. 3.—F. p. 
384.—OstrREA. T., Equivalve, inequilateral, suborbicu- 
lar, glossy white, transparent and without strie ribs or 
sculpture ofany kind; one of the sides produced; ears 
nearly equal. +. Torbay. 
* * Hars unequal. 
P. Levis. Pen. 4. p. 223.—Mont. p. 150. and 
Sup. p. 161. ¢. 4. f. 4.—Turt, B. p. 213.—F. p. 385. 
—Ostrea L. D. p. 131.—0. Sruixis. Laskey. Wer. 
Soc. 1. é. 8. f. 8.—Equivalve, equilateral, orbieular, 
thin, smooth, except a few transverse wrinkles, yellowish 
white, often marbled with brown, semitransparent; one 
1 
ear large the other small. =. Anglesea S W. Coasts. 
